Merge pull request #1371 from therealpxc/no-flake-refs-from-registry

flake-parts template: make flake-parts input source explicit

templates/flake-parts/flake.nix

@@ -6,6 +6,7 @@
       url = "file+file:///dev/null";
       flake = false;
     };
+    flake-parts.url = "github:hercules-ci/flake-parts";
     nixpkgs.url = "github:cachix/devenv-nixpkgs/rolling";
     devenv.url = "github:cachix/devenv";
     nix2container.url = "github:nlewo/nix2container";